Digital radio mondiale (drm) digital sound broadcasting in the am bands

Run-time Mapping of Applications to a Heterogeneous SoC

“…DRM is a OFDM based system using a multi-level convolutional coding scheme for error correction and MPEG-4 audio coding for source coding. A concise explanation of the DRM standard can be found in [3]. This section describes the mapping of a part (baseband processing) of a DRM receiver to a heterogeneous tiled SoC architecture We number the tiles in the SoC as follows: The left top tile is tile number 0, the next right neighbor is tile number 1, the right bottom tile is tile number 15.…”

“…Figure 3 shows the processes of the digital baseband part of our DRM receiver. Table I shows the processes that we would like to map on the SoC (for a functional description of the processes see [3]). These processes concern the data flow of the DRM application; we do not consider the processes 9,10,11 in the "Global control & estimation" part of Figure 3.…”

Low-overhead sampling clock frequency synchronization for OFDM-based DRM systems

“…In this section, simulations are performed to verify the usefulness of the proposed estimator in DRM channel models, taking into account different DRM robustness modes [3], whose main parameters are summarized in Table II Δ f is estimated and compensated by using GI-based one-shot estimation scheme [9,10]. Figure 1 shows the MSE of the SFO estimation schemes in channel 1 and channel 3 when N a = 3.…”

“…For the estimation part of the initial frequency synchronization, a method based on GI correlation can be used [9,10]. If the correlation value is calculated over several symbols,…”

A Study on the AM/FM Digital Radio for Practical Use Based on DRM and DRM+

“…유효전송용량 역시 2~72Kbps까지 가 변된다. 만약 9KHz 대역폭만 사용할 경우 13.1~30.9Kbps 의 유효데이터 전송이 가능하며 통상적으로 적정한 전송비 트는 약 20~24Kbps가 된다 [7] . 표 1.…”